Methoxy-v-Coelenterazine-Methoxy (Me-O-v-CTZ-O-Me) is a new synthetic analogue of v-Coelenterazine with two additional methoxy groups. So far we were not able to determine a luciferase that is working with this unique compound. Activities with RLuc8, Rluc3 and Green Renilla Luciferase are very low.nNanolight™ Technologies developed Prolume Purple V. (US Patent 2013/057660).